August Weather in Lerwick, United Kingdom

Last updated: March 17, 2025

In August, Lerwick, United Kingdom, experiences a temperate climate characterized by a maximum temperature of 15°C (60°F) and an average of 13°C (55°F). The month sees a cool minimum of 10°C (50°F), making it ideal for those who enjoy mild weather. However, be prepared for ample rainfall, as the area records approximately 74 mm (2.9 in) of precipitation over about 15 days. With humidity levels hovering around 87%, the atmosphere remains noticeably moist, contributing to the lush landscape typical of this coastal town. Visitors can expect a mix of cloudy skies and sporadic sunshine, perfect for exploring the natural beauty of Lerwick.

August Temperature in Lerwick

In August, Lerwick experiences a noticeable shift in temperatures, marking the height of summer. The minimum temperature rises to a comfortable 10°C (50°F), while the average settles at a pleasant 13°C (55°F), with a peak reaching 15°C (60°F). This warmth offers a stark contrast to the chillier months of early winter, reflecting a gradual increase from the previous months. As summer wanes, August invites visitors to relish longer days and milder weather, creating the ideal backdrop for exploring the stunning Shetland Islands.

August Weather in Lerwick: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Lerwick, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec444343434651545553504745
Data source: Temperature data for Lerwick generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Lerwick

August in Lerwick, United Kingdom, marks a notable increase in precipitation compared to the drier summer months. With 74 mm (2.9 in) of rainfall spread across 15 days, August transitions the region from its typically drier July into the wetter autumn months. This rise in precipitation is part of an ongoing trend, as rainfall begins to pick up significantly, setting the stage for September’s heavier total of 115 mm (4.5 in). The increased frequency of rainfall days highlights a shift in weather patterns, signaling that while summer may be fading, the lush green landscapes of Lerwick are nourished and rejuvenated by the plentiful, albeit variable, precipitation typical of its maritime climate.

August Precipitation Trends in Lerwick

The chart displays monthly precipitation patterns in Lerwick, with values for each month alongside August's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec96981035147547074115146133137
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Lerwick

In August, Lerwick experiences a notable humidity level of 87%, reflecting a trend of increased moisture through the summer months. Following a rise from 79% in January to 89% in July, the slight dip in August indicates a peak in humidity has been reached, with conditions remaining high as autumn approaches. This summer humidity pattern, characterized by gradual increases from 82% in April and consistency in the following months, creates a notable warm and damp atmosphere that contributes to Lerwick's lush landscapes and coastal charm. As September rolls in, humidity remains steady, hinting that the lingering summer air continues to dominate the region.

August Average Humidity in Lerwick

This chart illustrates the average monthly humidity levels in Lerwick, with August's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how August's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec79%79%81%82%84%84%89%87%87%87%85%78%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Lerwick

In August, Lerwick experiences a UV Index of 5, categorizing it as a moderate exposure period, with a burn time of around 30 minutes for fair-skinned individuals. This signifies a slight decrease from the high index levels seen in the peak summer months of June and July, where the UV Index reached 7 and 6 respectively. As we transition from the height of summer, August's UV levels remind residents and visitors alike to maintain sun safety practices. Despite the lower index, it still calls for vigilance, ensuring that everyone enjoys the beautiful Scottish summer while protecting their skin. For a detailed understanding of UV levels throughout the year, check out the full guide on the Lerwick UV Index.

Maximum UV Index Levels in Lerwick for August

The chart shows the monthly maximum UV Index (UVI) for Lerwick in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec112457654211
Data source: Lerwick August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

August Sunshine in Lerwick

As August rolls around in Lerwick, the sunny days begin to wane slightly after the peak of summer. While residents basked in an impressive 430 hours of sunshine in July, August still offers a commendable 376 hours, showcasing the lingering warmth of the season. This month stands out as a transition, where the lush landscapes benefit from the generous sunlight, making outdoor activities particularly inviting. Following the sun-drenched months of May through July, August’s brightness serves as a gentle reminder of the vibrant summer days soon to be replaced by the crispness of autumn. As we look ahead, September’s decline to 285 hours hints at the changing seasons, yet August remains a proud chapter in Lerwick’s annual sunshine narrative.

Monthly Sunshine Duration in Lerwick: August Highlighted

The August sunshine duration represents the total number of hours Lerwick experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec50h127h192h335h415h420h430h376h285h202h89h58h
Data source: Lerwick August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Lerwick During August

August in Lerwick, United Kingdom, is characterized by a notably low chance of sunshine, with only a 14% probability of sunny days, making it one of the least sunny months of the year. This decline is part of a broader downward trend seen from July's 17% chance and reflects the region’s shift towards the cooler, cloudier autumn weather. Contrastingly, months like January and February offer a slightly better likelihood of sun, hovering around the 32-33% mark. As summer gives way to fall, Lerwick’s residents and visitors can expect a significant decrease in sunny skies, reinforcing the notion that this picturesque town is rarely bathed in sunlight during August.

Percentage of Sunny Days in August in Lerwick

The chart illustrates the percentage of sunny days in Lerwick throughout the year, with August highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Lerwick experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec32%33%18%33%22%31%18%14%14%22%20%20%
Data source: Lerwick August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Lerwick in August

In August, Lerwick, United Kingdom, basks in a wholesome 15 hours of daylight, a delightful transition from the peak summer brightness of June, which boasts an impressive 18 hours. As the month progresses, daylight gradually wanes, signaling the approach of autumn. This decline follows a vibrant period from April through July, where longer days encouraged outdoor activities and a lively atmosphere. The gradual reduction from August into September, which sees a drop to 12 hours, hints at the changing seasons, yet still offers ample light for enjoying the lingering warmth of summer evenings. This captivating rhythm of daylight not only reflects the beauty of Lerwick's northern latitude but also sets the stage for the cozy charm that autumn brings.

Average Daylight Hours in Lerwick for August

The chart illustrates the variation in daylight duration in Lerwick throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec6h 46m9h 8m11h 51m14h 38m17h 14m18h 44m17h 55m15h 30m12h 47m10h 2m7h 27m5h 57m
Data source: Lerwick daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Lerwick

In August, Lerwick experiences a gentle shift in its breezy character, with an average wind speed of 5.9 m/s (13 mph), making it one of the more subdued months of the year. This marks a noticeable decline from the gustier spells of spring and early summer, where the winds reached up to 10.1 m/s (23 mph) in February and peaked again at 10.7 m/s (24 mph) in November. The summer months showcase the calmest conditions, with July recorded at just 5.3 m/s (12 mph). As autumn approaches, winds begin to strengthen again, hinting at the dramatic transitions ahead, but August stands out as a month of relative respite in Lerwick's variable maritime climate. The overall trend reveals a cycle of intensity, with the high-energy winds of late fall and winter a stark contrast to the tranquility found during this mid-summer phase.

Average August Wind Speed in Lerwick

The chart displays monthly wind speed patterns in Lerwick, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec8.810.19.38.76.46.45.35.9 m/s7.69.410.79.2
Data source: Lerwick August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Lerwick Compares to Other Months

The weather in Lerwick changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Lerwick and find detailed weather information for every month.

In August, the weather in Lerwick is relatively mild, with average temperatures ranging from a minimum of 10°C (50°F) to a maximum of 15°C (60°F). The month sees about 74 mm (2.9 in) of precipitation spread over approximately 15 days, accompanied by high humidity levels of 87%. In contrast, January experiences cooler temperatures, with averages between 2°C (35°F) and 11°C (52°F). Precipitation increases to 96 mm (3.8 in) over around 18 days, while humidity is slightly lower at 79%. For more detailed insights on January weather, check out Lerwick weather in January.

August and February in Lerwick showcase distinct weather patterns. In August, temperatures are milder, with a minimum of 10°C (50°F) and an average of 13°C (55°F), while February is chillier, peaking at a maximum of only 10°C (51°F) and averaging 6°C (43°F). Both months experience significant precipitation, but February receives more, totaling 97 mm (3.8 in) over 19 days compared to August's 74 mm (2.9 in) over 15 days. Despite higher rainfall in February, it has lower humidity levels at 79%, contrasted with the more humid August atmosphere at 87%. For more detailed information on February's weather, check out Lerwick weather in February.

In comparing the weather between August and March, we observe significant differences in both temperature and precipitation. August tends to be much milder, with average temperatures ranging from a minimum of 10°C (50°F) to a maximum of 15°C (60°F), coupled with high humidity levels at 87%. Conversely, March is noticeably colder, with temperatures typically ranging from a minimum of -2°C (29°F) to a maximum of 9°C (49°F). Additionally, March experiences more precipitation overall, totaling 103 mm (4.1 in) across about 20 days, compared to August's 74 mm (2.9 in) over 15 days. For a detailed look at March weather patterns, you can visit Lerwick weather in March.

In comparing the weather between August and April, August is significantly warmer, with average temperatures ranging from a minimum of 10°C (50°F) to a maximum of 15°C (60°F), while April's temperatures are notably cooler, averaging from 0°C (31°F) to 10°C (51°F). Additionally, August experiences higher humidity levels at 87%, compared to April's 82%. While August sees more precipitation with 74 mm (2.9 in) over 15 days, April has slightly less with 51 mm (2.0 in) over 13 days. For a detailed look at the weather specifics in April, you can visit Lerwick weather in April.

When comparing the weather in August and May, it's clear that August is generally milder, with average temperatures ranging from a minimum of 10°C (50°F) to a maximum of 15°C (60°F), compared to May's cooler temperatures that range from 2°C (36°F) to 12°C (54°F). Additionally, August experiences more precipitation, with 74 mm (2.9 in) over 15 days, while May has 47 mm (1.8 in) on 13 days. Humidity levels are slightly higher in August at 87%, compared to 84% in May, contributing to a more humid atmosphere during the late summer month. For a detailed view of May's weather, you can visit Lerwick weather in May.

When comparing the weather in August and June, August tends to be slightly milder, with average temperatures reaching 13°C (55°F) compared to June's 10°C (51°F). The maximum temperature in August is also marginally higher at 15°C (60°F), while June peaks at 14°C (58°F). Both months experience considerable precipitation, but August sees a greater total of 74 mm (2.9 in) over 15 days, compared to June's 53 mm (2.1 in) across 12 days. Additionally, humidity levels are a bit higher in August at 87%, versus 84% in June. For more specific details about June weather, you can check Lerwick weather in June.

In comparing the weather of August and July, August generally experiences slightly milder temperatures, with a minimum of 10°C (50°F), compared to July's 8°C (48°F). The average temperature in August is also marginally higher at 13°C (55°F) versus 12°C (54°F) in July. However, July boasts higher maximum temperatures, reaching up to 17°C (63°F), compared to August's maximum of 15°C (60°F). While both months have significant rainfall, August sees a bit more precipitation at 74 mm (2.9 in) over 15 days, compared to July's 69 mm (2.7 in) over 12 days. Humidity remains high in both months, with July at 89% and August slightly lower at 87%. For more in-depth details, you can check Lerwick weather in July.

August and September exhibit some notable differences in weather conditions, despite their similarities. In August, temperatures range from a minimum of 10°C (50°F) to a maximum of 15°C (60°F), with an average of 13°C (55°F). The month sees 74 mm (2.9 in) of precipitation spread over 15 days, while humidity remains relatively high at 87%. In comparison, September experiences slightly cooler temperatures, with a minimum of 8°C (46°F) and an average of 12°C (54°F), yet still peaking at 15°C (59°F). Precipitation increases to 115 mm (4.5 in) over 18 days, maintaining the same humidity level of 87%. For a more detailed look at September's weather, consider checking Lerwick weather in September.

In August, the weather tends to be milder, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 15°C (60°F), averaging around 13°C (55°F). The month experiences a significant amount of rain, with 74 mm (2.9 in) of precipitation over 15 days, while maintaining a high humidity level of 87%. In contrast, October sees cooler temperatures, with a minimum of 5°C (42°F) and a slightly higher maximum of 14°C (57°F), averaging 10°C (51°F). However, it brings more rainfall, totaling 146 mm (5.8 in) over 23 days, and continues to hold the same humidity level of 87%. For more detailed information about the weather in October, check out Lerwick weather in October.

In August, the weather is relatively mild with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 15°C (60°F), accompanied by 74 mm (2.9 in) of precipitation over approximately 15 days. The high humidity level of 87% contributes to a somewhat muggy atmosphere. In contrast, November brings cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 12°C (54°F). The month sees significantly more rainfall, totaling 133 mm (5.2 in) over about 23 days, along with a drop in humidity to 85%. For a more detailed overview, check out the Lerwick weather in November.

In August, the weather in Lerwick is relatively mild, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 15°C (60°F). The average temperature is around 13°C (55°F), accompanied by 74 mm (2.9 in) of precipitation over approximately 15 days. The humidity is quite high at 87%, making it feel more humid and sticky.

Conversely, December brings colder temperatures, with a minimum of 3°C (37°F) and a maximum of 11°C (52°F), averaging around 7°C (45°F). This month experiences significantly more rainfall, totaling 137 mm (5.4 in) across about 25 days, though the humidity is slightly lower at 78%. For more details on the December weather, you can check Lerwick weather in December.

Compare Lerwick's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Lerwick

As August rolls in, Lerwick experiences a subtle shift in its weather patterns, offering a blend of cool temperatures and increased humidity that sets it apart from other months. With an average temperature hovering around a brisk 13°C (55°F), the warmth is often accompanied by occasional rain, as evidenced by 15 days of precipitation totaling 74 mm (2.9 in). This combination of moisture and mild temperatures creates a distinct atmosphere that invites both locals and visitors to enjoy the fleeting summer days before autumn arrives. For a deeper understanding of the shifting climate throughout the year, explore our detailed insights on Lerwick Climate.